COLREGs Sound & Signals

madeof.blue·FREE

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Description

Learn the ColRegs sound and light signals.

This app helps you learn ColRegs rules 34 to 37 and annex IV.

The app is free with premium content, ad free, and does not require an internet connection. It does not collect or share any user data.

Developer

madeof.blue

Developer ID: 8103794957834081944

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아주대만족합니다

Apr 22, 2020

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